数菌器, 菌落计数器

Bacteria are extremely small living things. While we measure our own sizes in inches or centimeters, bacterial size is measured in microns. One micron is a thousandth of a millimeter: a pinhead is about a millimeter across. Rod-shaped bacteria are u

发表于:2018-11-28 / 阅读(424) / 评论(0) 分类 新概念优美背诵短文50篇

Bacteria are extremely small living things. While we measure our own sizes in inches or centimeters, bacterial size is measured in microns. One micron is a thousandth of a millimeter: a pinhead is abo

发表于:2018-12-01 / 阅读(141) / 评论(0) 分类 新东方背诵文选

By Ruth Reader Washington, DC 13 February 2008 There is growing concern around the world over illnesses caused by new antibiotic-resistant bacteria, or so-called superbugs, and the decreasing effectiveness of antibiotics to treat infections. Earlier

发表于:2019-01-07 / 阅读(67) / 评论(0) 分类 VOA常速英语2008年(二月)

A lawyer for the doctor charged for MIchael Jackson's death says the singer died from drugs he injected on his own. The defense team claim Jackson swallowed several pills used to treat insomnia on the morning he died. He gave himself anesthetics ,cre

发表于:2019-01-11 / 阅读(105) / 评论(0) 分类 美联社新闻一分钟2011(十月)

Experts: Let Produce Dry Out to Avoid Bacteria American researchers say farmers should wait one day after a rain storm or watering their fields to harvest fresh fruits and vegetables. They say gathering the crops at least 24 hours after rainfall incr

发表于:2019-01-12 / 阅读(112) / 评论(0) 分类 2015年VOA慢速英语(七)月

Ⅳ. Counter Offers 还盘 If a buyer does not agree with any or some of the transaction terms of a quotation or a firm offer, he sends a counter-offer. In the counter-offer, the buyer may show his disagreement to the certain term or terms and state

发表于:2019-02-14 / 阅读(99) / 评论(0) 分类 实用英语
学英语单词
acephalothoracia
Alekhovshchina
All Private Folders
Amiens
antiquarks
automatic programming
Biermer
bio-power
brownf cockroach
coloscope
composters
continuous b class ceilings
cotton wool bud
cow equivalent
decreesse
dendrophylliids
diamond-encrusted
disconfirmation of expectation
disoxidant
doom
Dosuciclina
ductus nasolacrimalis
dutch rabbit
electrooptical bistable system
esports
euryarchaeotic
ever-closer
fire salamanders
flannell
gear scroll chuck
gunpokes
heavy aggregate
highway traffic mode
hugue
igman
infraluminescence
jordanna
kennish
kheera
liboya
malloy
mawon
mehg
military geomorphology
mineowner
minibands
modelled
multivalue function
NEDC
Nig nog
nonhalogens
nonidentifiable
numeric-error
oil-gas anticlinal deposit
omega-oxidation theory
oneirophrenias
palaeogeographers
pearns
pecilocythemia
peopled
pickaninnies
plastic-faced die
point-down method
puzznics
radiant quantity
rainjacket
reassumes
relay junction box
relevant provisions
resistance-coupled
rotten streak
rubidium iodobromide
Rufen-P4
running in of engine
Saurat
sexploiter
sharp-edge orifice meter
shirmer
short ballots
shuttle overtravel stops
sink-holes
sling the bull
snow-drift control
sonar scanning set
special function of ellipsoidal type
speed ability
stack gas desulfurization
standard contract form
subsistence wage
supernumerary nuclei
switch hitter
telereality
tenant in tail
transaction in assets
traveling barrel
turning sickness
underframe clearance
unwilfulness
urey-miller
Veronicastrum rhombifolium
vertical flow settling basin(tank)
windthrows